Abstract: Isolated colonic tuberculosis is defined as a tuberculosis which exists in the colon except for ileoeaecum,without focus in any other organ.It is very rare and usually may be misdiag-nosed as colonic malignent tumor or other infectious diseases.Seven patients of isolated colonic tuberculosis were treated at our hospital.Although there are no specific diagnostic motheds for it,we suggest that it is helpful to find isolated colonic tuberculosis by means of multipieces of histological and bacterical examination.The first choice of treatment is anti-tu-berculosis therapy,but the complications such as bleeding,perforation and obstruction may need surgery.

Key words: colon, tuberculosis, diagnosis